Installation manual
194
8.12.5
8.12.5 Combination tanks and combo tanks
Central domestic hot water preparation via tube heat exchangers
Preconfiguration
Setting
Fig. 8.31: Integration diagram for mono energy heat pump operation with one heating circuit and the PWS 332 combination
tank
Operating mode
Mono
energy
1. Heating circuit 1 Yes
2. Heating circuit 1 No
Hot water
preparation
Yes
Request Sensors
Flange heater Yes
Swimming pool
preparation
No
The combination tank consists
of a 100 l buffer tank and a 300 l
hot water cylinder which are
hydraulically thermally
independent of each other.
Domestic hot water is prepared
using an integrated tube heat
exchanger with 3.2 m
2
heat
exchanger area.
Central domestic hot water preparation according to the flow principle
Preconfiguration
Setting
Fig. 8.32: Integration diagram for mono energy heat pump operation with two heating circuits and the PWD 750 combination
tank
Operating mode
Mono
energy
1. Heating circuit 1 Yes
2. Heating circuit 1 Yes
3. Heating circuit 1 No
Hot water
preparation
Yes
Request Sensors
Flange heater Yes
Swimming pool
preparation
No
The PWD 750 combination tank
has a buffer tank volume of 750
l. 200 l of this are used as
heating buffer and 550 l for
domestic hot water preparation.
The domestic hot water is
prepared using integrated finned
tube heat exchangers which
heat up the domestic hot water
according to the flow principle.
Integrated heat riser pipes use
the heating buffer as preheating
stage for hot water preparation.
A circular plate prevents the
different water layers with
varying temperatures from
becoming mixed together.
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